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Table 2: 
Patient characteristics
Characteristic
Sex (female/male ratio)8:17
Age on follow-up MRI (range) (yr)66 (39–86)
MRI examinations (No.) (%)a
    1 Time19 (76)
    2 Times3 (12)
    3 Times2 (8)
    4 Times1 (4)
Follow-up period (range) (mo)33 ± 35 (0.5–142)
Symptom on admission (No.) (%)
    None15 (43)
    Pure motor16 (46)
    Hemiplegia2 (6)
    Hemianopsia2 (6)
Vascular risk factors (No.) (%)
    DM8 (32)
    HL3 (12)
    HT12 (48)
    Smoking6 (24)
  • Note:—DM indicates diabetes mellitus; HL, hyperlipidemia; HT, hypertension.
  • ↵a Number of initial MRI examination per patients.